Home / 13,657.60-20,486.40-4,889.35

Finding the Fourth Proportional to 13,657.60, 20,486.40 and 4,889.35

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Solution

The fourth proportional to 13,657.60, 20,486.40 and 4,889.35 is: 7,334.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.60 : 20,486.40 = 4,889.35 : x
  2. Step 2: Convert to fraction form
    13,657.60/20,486.40 = 4,889.35/x
  3. Step 3: Cross multiply
    13,657.60x = 20,486.40 × 4,889.35
  4. Step 4: Simplify right side
    13,657.60x = 100,165,179.84
  5. Step 5: Solve for x
    x = 100,165,179.84/13,657.60
  6. Step 6: Final answer
    x = 7,334.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.